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The Annals of Thoracic Surgery, Vol 51, 52-55, Copyright © 1991 by The Society of Thoracic Surgeons

ARTICLES

Hemodynamics versus biopsy findings during cardiac transplant rejection

SF Bolling, JB Putnam Jr, GD Abrams, AM McKay and GM Deeb
Section of Thoracic Surgery, University of Michigan School of Medicine, Ann Arbor.

Before the use of cyclosporine as the major component for immunosuppression after cardiac transplantation, rejection was accompanied by catastrophic hemodynamic decompensation. However, the hemodynamic changes that occur during rejection after cardiac transplantation in patients treated with cyclosporine have not been clearly described. Between July 1986 and October 1989, 89 adults underwent orthotopic heart transplantation at the University of Michigan Medical Center. All patients received triple-drug therapy immunosuppression consisting of steroids, cyclosporine, and azathioprine. Cardiac hemodynamics were measured and correlated with the histologic assessment of rejection. There have been ten deaths among these 89 patients for an overall survival of 89%. There were no deaths from rejection. One hundred fifty-three of the biopsy specimens were read as grade 0, 31 were grade 1, 75 were grade 2, 103 were grade 3, and 9 patients had grade 4 biopsy specimens. No hemodynamic differences were noted in patients with increasing grade of rejection. Five patients (5/9, 55%) with severe rejection (grade 4) had symptoms of congestive heart failure at the time of biopsy. These symptomatic grade 4 patients differed from asymptomatic grade 4 patients only in cardiac output (2.9 versus 5.2 L/min). Overall hemodynamic decompensation was not evident as rejection grade increased. Routine serial endomyocardial biopsies remain the procedure of choice in the diagnosis of rejection in the asymptomatic patient after cardiac transplantation as hemodynamics do not predict degree of rejection.

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